* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
}

.controls {
    text-align: center;
    margin-bottom: 20px;
}

button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 10px 20px;
    margin: 0 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #0056b3;
}

button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.loading {
    text-align: center;
    padding: 20px;
    color: #007bff;
    font-weight: bold;
}

.hidden {
    display: none;
}

.data-container {
    background-color: white;
    border-radius: 4px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.user-item, .post-item {
    border-bottom: 1px solid #eee;
    padding: 15px 0;
}

.user-item:last-child, .post-item:last-child {
    border-bottom: none;
}

.user-name {
    font-weight: bold;
    color: #333;
}

.user-email {
    color: #666;
    font-size: 14px;
}

.post-title {
    font-weight: bold;
    color: #333;
    margin-bottom: 5px;
}

.post-body {
    color: #666;
    font-size: 14px;
}

.error {
    color: #dc3545;
    text-align: center;
    padding: 20px;
}
